All right. This is a very special live "play of the day." Because it's monday. We want two bring back nick watt. You brought us the story, nick, a remarkable one about speech and breakthroughs made in the speech of gorillas. You want to bring your expertise teach us a couple of words. Go ahead. These are the two most important words we can say on a morning like this. The first is -- that means political. And the second, and fool. I am the fool around here. I had to bring you this story. We did give you a couple of clues. If you listened to one of the first grunts and play it back wa backwards, it says april fool. What you're hearing, those grunts, we know those are words. april fools. April fools. Unbelievable. There was another clue buried in the piece. Well -- dr. Frill's work started six years ago this very day. April 1, 20 there's an anagramatic clue, I'm told? Yes, well, the main one is dr. Paolos is fril. What is an anagram for april fools. Thank you so much, ni. Terrific. Brad paisley coming up. And that's no fool. oats

This transcript has been automatically generated and may not be 100% accurate.

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